The Society of International Thoroughbred Auctioneers (SITA) was founded in 1983 by six of the leading Thoroughbred auction houses in the Northerm Hemisphere (Agence Francaise de Vente du Pur-Sang, Faisg-Tipton Co., Inc., Robert J. Goff Ltd., Keeneland Association, Inc., Ocala Breeders' Sales Co., Inc., Tattersalls Ltd.). Their principal aim was to create a forum for the discussion of their mutual problems. The independence of individual Members is nevertheless fully preserved.

The Founding Members have since been joined by William Inglis & Son Pty. Ltd. of Australia, The Thoroughbred Breeders' Association of South Africa, Canadian Breeders' Sales, Inc. and Wrightson Bloodstock Ltd. of New Zealand. A number of companies with less international business have become Associate Members.

SITA'S business is conducted by a Council, which meets twice each year, composed of senior representative (generally the Chairman or President) from each member Company.
Between Council meetings, SITA investigates and monitors matters of interest to the bloodstock industry as they relate to auction sales. A SITA member from England, France, Ireland and North America is appointed to the bloodstock industy as they relate to auction sales.

A SITA member from England, France, Ireland and North America is appointed to the bloodstock industy as they relate to auction sales.

A SITA member from England, France, Ireland, and North America is appointed to the International Cataloguing Standards Committee.

SITA also approves the standards established by the International Cataloguing Standards booklet.

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